Cynthia Riggs Books

Death and honesty

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"April arrives in Martha's Vineyard, bringing two of life's inescapable certainties--death and taxes. When the body of a local resident is found inside the home of one of the town's three tax asses...

Touch me not

By Cynthia Riggs

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A mathematical knitters group is working on a coral reef quilt for a competition to draw attention to global warming. When a telephone stalker begins preying on their members, they turn to nonagena...

Deadly Nightshade Martha s Vineyard Mysteries

By Cynthia Riggs

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The Cranefly Orchid Murders

By Cynthia Riggs

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The Cemetery Yew

By Cynthia Riggs

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Paperwhite Narcissus Library Edition Martha s Vineyard Mysteries

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The Cranefly Orchid Murders Library Edition

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The Cemetery Yew

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The Cemetery Yew

By Cynthia Riggs

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The Cranefly Orchid Murders Martha s Vineyard Mysteries

By Cynthia Riggs

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.